The oil filter of the Audi Q7 is located next to the battery in the engine compartment, primarily functioning to filter out impurities, gums, and moisture from the engine oil, ensuring that clean oil is delivered to various lubrication points. The specific steps to locate it are as follows: first, open the driver’s side door of the Audi Q7. The air filter is found in front of the intake pipe, inside the black box at the front right of the car; the oil filter is located in the left oil filter seat and requires lifting the cover with the Audi logo to see it. The fuel filter is under the rear seat, which needs to be lifted for replacement, making it relatively cumbersome. The cabin filter is located behind a cover in the glove compartment on the passenger side. For the diesel version of the Audi Q7, the diesel filter is positioned on the side of the engine and appears as a silver cylindrical object, visible upon opening the hood.
The main maintenance items for cars include: regular inspection and pressure maintenance of the tires, oil and oil filter replacement, air filter, fuel filter, and pollen filter replacements, as well as maintenance of spark plugs and inspections of transmission oil. To ensure the vehicle's appearance and performance, cleaning and detailing are essential, including cleaning the windows, lights, doors, engine compartment, and tires, as well as checking the electrolyte level in the car battery. Minor maintenance usually refers to routine maintenance items performed after a certain mileage, including oil and oil filter replacement.